"Game of Thrones" creators David Benioff and D.B. Weiss almost made an "alt history" drama where slavery was still legal. TV shows get canceled for all sorts of reasons — low ratings, budget concerns, bad decisions by the network, etc. Sometimes, however, a series is canceled before a single episode makes it to air because something about the show makes people go, "Who on earth approved this?!" Here are 15 TV shows that were so controversial, they were canceled before making it to air: 1. THE SHOW: In 2021, CBS announced its new reality competition series, The Activist. This "first...